Tubes and pipes produced by Luoyang Shunyi Titanium Industry Co., Ltd include seamless and welded ones that cover a fairly large dimension range as shown below:
Seamless tube outside diamter: 5-168 mm
Seamless tube wall thickness: 0.5-4 mm
Seamless tube length: <15000
Welded pipe outside diameter: 6-57 mm
Welded pipe wall thickness: 0.5-2.4 mm
Welded pipe length: <15000 mm